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User Guide

LMG MkII

Signal Processor

5.3.5 Cable lengths

The maximum cable lengths are, to a great extent, dependent on baud rate

and cable type. Generally a lower baud rate will give reliable communications

over a longer length of a given cable type.
RS485

9600 baud, 1000 m when using the cable recommended below,

with correct cable terminations.

Recommended 1000 m cable for RS485:
•

2 pairs individually screened;

~50 ohms characteristic impedance, <= 55 ohm/km;

<100 pf/m core to core

<200 pf/m core to screen

Содержание LMG MkII

Страница 1: ...Landmark Graphic MkII Signal Processor i Q U A L I T Y C U S T O M E R S O L U T I O N S LMG MkII USER GUIDE PUBLICATION NO 812471 LANGUAGE ENGLISH ...

Страница 2: ...g this equipment is the responsibility of the assembler Protective Clothing Face and Eye Protection It is possible that this equipment is to be installed on or near to machinery or equipment operating at high temperatures and high pressures Suitable protective clothing along with face and eye protection must be worn Refer to the health and safety guidelines for the machinery equipment before insta...

Страница 3: ...ign and Manufacturing Standards The Quality Management System of Land Instruments International is approved to BS EN ISO 9001 for the design manufacture and on site servicing of combustion environmental monitoring and non contact temperature measuring instrumentation Registered ISO9001 Management System approvals apply in the USA UK Calibration Laboratory UKAS 0034 USA Calibration Laboratory ANAB ...

Страница 4: ...ystem 3 1 3 2 Language Selection 3 3 3 3 About the Channel Configuration Menu 3 3 3 4 Adjusting items in the Channel Configuration Menu 3 4 3 5 Using the Quick Buttons 3 5 3 6 Thermometer Type 3 7 3 7 Emissivity 3 8 3 8 Alarms 3 9 3 9 Output 3 10 3 10 Label 3 10 3 11 Display Settings 3 11 3 12 Changing the Access Code 3 21 4 Time Function Processing 4 1 4 1 None 4 1 4 2 Averager 4 1 4 3 Peak Picke...

Страница 5: ...aths Card Electrical Connections 6 2 6 3 Maths Functions 6 5 6 4 Maths Function Options 6 7 6 5 Alarm and Current Output Configuration 6 14 6 6 Typical Maths Function Applications 6 19 7 Maintenance 7 1 7 1 Available Spares 7 1 7 2 USB Functions 7 2 8 Upgrading from LMG MkI to LMG MkII 8 1 8 1 Upgrade Procedure 8 1 8 2 Differences Similarities 8 1 ...

Страница 6: ...INTRODUCTION 1 ...

Страница 7: ...nfrared thermometers It has been designed as an upgrade from an original LMG and contains many of the same features The processor features include Large clear bright full colour LCD touchscreen with wide viewing angle Easy to use configuration menu system with security code context sensitive help display and Quick Key selection of the most commonly changed parameters Language choice for the displa...

Страница 8: ...ple selectable Threshold 1 steps setable On delay 0 to 10s in 0 1s steps Off delay 0 to 10s in 0 1s steps Decay rate 0 0 25 0 5 1 2 4 8 16 32 64 128 256 512 s Acquisition time 1 25ms Valley Picker Reset hold or valley sample selectable Threshold 1 steps setable On delay 0 to 10s in 0 1s steps Off delay 0 to 10s in 0 1s steps Recovery rate 0 0 25 0 5 1 2 4 8 16 32 64 128 256 512 s Acquisition time ...

Страница 9: ...way plug and cover including 2 screws and a clamp bar for Retransmission output connection 2 way plug for Command input connection 3 way plug for 24Vdc power DIN Rail mounted Power Supply 24Vdc output 100 to 240Vac input One 2 5mm hexagonal screwdriver to aid installation and set up One of these connectors is supplied for each thermometer channel fitted to the processor If you have ordered any opt...

Страница 10: ...INSTALLING THE PROCESSOR 2 ...

Страница 11: ... mm 0 6 in 184 1 1 0 mm 7 2 0 04 0 in 137 1 0 mm 5 4 0 03 0 in Cut Out Maximum panel thickness 13 mm 0 5 in Processor front bezel 192mm 7 6in Protection cover 206 mm 8 1 in Protection cover 158mm 6 2in 2 Installing the Processor The Landmark Graphic Mark II processor is designed to be mounted in an instrument panel The overall installation dimensions of the processor are given in Fig 2 1 ...

Страница 12: ...rear of the processor and slide out the two clamp bars 4 From the viewing side insert the processor in the mounting panel 5 From the rear re insert the clamp bars into their channels and push them up to touch the mounting panel 6 Insert and tighten the retaining screws until the mounting panel is firmly gripped between the processor front panel and the clamp bar CAUTION Do not overtighten the scre...

Страница 13: ... 3 User Guide LMG MkII Signal Processor A clear cover is available Part Nº 812087 which screws onto the processor front panel and seals it to a rating of IP65 See Fig 2 3 Fig 2 3 LMG MkII Processor Cover ...

Страница 14: ...User Guide 2 4 Signal Processor LMG MkII Fig 2 4 LMG MkII Electrical System Overview ...

Страница 15: ...ions to and from the processor are all made via connectors on the rear panel of the processor Fig 2 5 shows the location of the connectors Fig 2 5 Rear panel electrical connections 1 2 3 4 5 6 7 1 Alarm output 2 Command input CMD 3 Retransmission output 4 Thermometer connector 5 RS485 serial communications output 6 USB update port 7 Power input 24Vdc ...

Страница 16: ...nnection schedule The CMD Command input connection schedule is given in Fig 2 7 The command signal is inactive when the voltage is 3 0 V or open circuit i e Track The command signal is active when the voltage is 1 5V or short circuit i e Hold Fig 2 8 CMD Command input control via a remote switch relay contact ALARMS Pin Nº Function C NO NC C NO NC Description Common Normally Open Normally Closed C...

Страница 17: ...erial Communications cable connection schedule Pin Nº Function I I Screen V V Description Current output drive Current output return Screen Voltage output drive Voltage output return Maximum loop resistance 500 Ω 1 2 3 4 5 OUTPUT Load Minimum load resistance 10k Ω Yellow Blue White Screen Red Black Green Function Cable Colour T T E Screen V V E Pin Nº 1 2 3 4 5 6 7 THERMOMETER T Temperature signal...

Страница 18: ...DC power input connection schedule Fig 2 14 DC power input from Power Supply 2 2 6 USB Upgrade Port Connect a USB stick with the latest firmware for both Processor and I O Cards to the UPGRADE Port Fig 2 12 The LMG MkII software will update automatically from the files on the USB See Section 7 2 for instructions on updating the firmware Fig 2 12 UPGRADE port ...

Страница 19: ...f processor Fig 2 16 RS485 interface connections RS485 converter USB USB Tx Tx GND Rx Screen n n n n n 1 3 2 4 5 Rx Rx Rx GND Tx Tx 6 Remove rear cover of LMG MkII to access S1 LMG MkII isolated RS485 with optional 120R termination LMG 1 2 3 4 S1 120R 120R PC with RS485 converter Isolation LMG MkII RS485 6 way connector Function Pin Nº GND Tx Tx Screen Rx 1 2 3 4 5 6 RS 485 Rx Use Pins 2 to 6 if c...

Страница 20: ...e connectors for the rear panel of the processor are included in the processor package Each cable connector must be correctly wired with the appropriate cable before the processor is used Refer to Section 2 2 for the cable schedules A write on label is included in the connector for your use To wire up the connector 1 Make a note of the connector s orientation in the rear panel of the processor 2 U...

Страница 21: ...nnector shell ensuring that the write on label is held in place by the shell assembly The connector is now ready for use 2 4 Fitting an I O card Refer to the document Landmark Graphic MkII Processor Thermometer or External I O Card Installation Guide AMETEK Land Publication Nº 8xxxxx ...

Страница 22: ...3 USING THE PROCESSOR ...

Страница 23: ...for use with that thermometer The temperature measurement system i e processor and thermometer is configured via the processor s menu system using the touchscreen display on the front panel The location of the controls is given in Fig 3 1 3 1 Getting Started accessing the menu system When the Landmark Graphic MkII processor is connected to a System 4 thermometer and a suitable power supply the pro...

Страница 24: ...0 seconds elapse without a key being pressed a Time out feature returns you to the original screen see Fig 3 2 If this occurs the access code must be re entered to regain access to the configuration menus Fig 3 3 shows the Main Configuration Menu for a processor connected to four thermometers Your system may differ from this Channel A to D Settings are covered in Section 3 4 to 3 10 Serial Setting...

Страница 25: ...l A Configuration Menu 3 3 About the Channel Configuration Menu Fig 3 4 Configuration Menu components Each Channel Configuration Menu comprises the components shown in Fig 3 4 The function of each component of the menu is as follows 1 Main Menu This shows the items that can be altered in the Configuration Menu 2 Sub Menu This shows the list of options available for each main item in the Configurat...

Страница 26: ...e for the item 3 To save your changes and exit the Configuration menu press the Confirm button 5 or to discard your changes press Cancel 4 The Main Configuration menu is displayed 4 To exit the Main Configuration Menu press Cancel 4 Details of the configurations available are as follows Thermometer Type Section 3 6 Emissivity Section 3 7 Time Functions Section 4 Alarms Section 3 8 Output Section 3...

Страница 27: ...e changed most frequently 3 5 1 Emissivity quick button Pressing the button opens up the Emissivity menu See Fig 3 5 Fig 3 5 Quick Button Emissivity menu Note For emissivity settings in the range 0 05 to 0 19 system performance is unspecified and is not guaranteed 3 5 2 Alarm quick button Pressing the button opens up the Alarm menu See Fig 3 6 Fig 3 6 Quick Button Alarm menu ...

Страница 28: ...ton opens up the Display menu See Fig 3 7 Fig 3 7 Quick Button Display menu Note The function of each quick button can be locked This feature is useful in preventing inadvertent or mischievous altering of system settings The quick button locks are accessed via the Display Settings menu ...

Страница 29: ...ted to a particular channel This is important because the LMG MkII applies additional corrections based on the thermometer type in order to achieve the highest possible system accuracy If an incorrect type is selected then the wrong correction will be applied It also sets the range of temperature values allowed in other channel configuration parameters 4 If you cannot find the thermometer you are ...

Страница 30: ...m 4 thermometers to correct for the effects of surface emissivity on the particular material whose temperature is being measured Emissivity depends on the material and the wavelength of the thermometer Please consult the particular thermometer user guide for recommended emissivity settings Note for emissivity settings below 0 200 the temperature output specification is not guaranteed If the thermo...

Страница 31: ...hannel I O card has two independent alarms with connections to Normally Open NO and Normally Closed NC relay contacts Use the and buttons to select a temperature at which the alarm activates Temperatures must be within the range of the thermometer selected Each alarm can be set as either an over temperature High or under temperature Low alarm When powered off the LMG MkII will settle into the acti...

Страница 32: ...emperature reading of the display e g if the temperature reading on the LMG MkII display is 1135 C the mV output will be 1 135V Each channel I O card also has a configurable current output the output can be selected to be either 0 20mA or 4 20mA The maximum and minimum temperature of the selected current output range can set within the range of the temperatures of the attached thermometer subject ...

Страница 33: ...s button 2 Select the Display Settings option A typical Display Settings menu is shown in Fig 3 13 Fig 3 13 Label display The Display Settings menu is used to configure and select the various display types that can be used on the LMG Use the buttons on the left to select which channels display to configure and on the right will appear a list of available display types for that channel 3 11 1 Quick...

Страница 34: ...lay Configuration A typical Numerical Display Configuration menu is shown in Fig 3 15 Fig 3 15 Numerical Display Configuration menu In this menu there is the option to enable displaying of one decimal place If this is enabled then the temperature in the numerical view will be shown to a tenth of a degree Pressing the Enable button makes this type of view the active display upon exiting the menu Fi...

Страница 35: ...guration menu is shown in Fig 3 17 Fig 3 17 Numerical Display Configuration menu Mixed numerical like the standard numerical display can be configured to show temperatures to a tenth of a degree Pressing the Enable button makes this type of view the active display upon exiting the menu Fig 3 18 Typical Mixed Numerical display ...

Страница 36: ...t display The line chart shows a historic profile of the temperature over the selected timespan The minimum and maximin scaling as well as the time span can be set from the configuration menu Red areas on the chart indicate the regions where alarms will be active This screen also shows the current thermometer reading at the top left of the screen as well as the alarm levels at the bottom In an ala...

Страница 37: ...the range that the graph will span Timespan is used to adjust the vertical scale of the deviation chart Pressing the Enable button makes this type of view the active display upon exiting the menu Fig 3 22 Typical Deviation Chart display The deviation chart shows the temperature as a difference from a set temperature The Tmid point sets the temperature in the middle of the chart and the Tspan adjus...

Страница 38: ...wn in Fig 3 23 Fig 3 23 Multi Channel Numeric Configuration menu Fig 3 24 Typical Multi Channel Numeric display The Multi Channel Numeric display shows the inputs from four channels at the same time Each channel shows the current reading in large text and the alarm values below If an alarm is active the corresponding alarm text will flash red ...

Страница 39: ...nel Bar Chart display The Multi Channel Bar Chart shows four inputs as a bar chart The yellow bar represents the current input to the channel The scale of the bar is adjustable in the settings as well as the output temperature units Red areas on the bar chart represent the alarm zones Next to each bar is shown the current reading for each channel as well as the alarm values If an alarm is active t...

Страница 40: ...ti Channel Deviation Bar Chart Configuration menu Fig 3 28 Multi Channel Deviation Bar Chart display The Multi Channel Deviation Bar Chart is similar to the standard bar except the bar represents the variation from a given temperature The Tmid value is the temperature at the centre of each bar and the Tspan determines how far from the mid point the bar shows Red areas represent alarm regions ...

Страница 41: ...ical Multi Channel Input Selection menu is shown in Fig 3 29 Fig 3 29 Multi Channel Input selection menu For each multi channel display 4 input channels can be selected These inputs can be either from regular IO cards or from one of the two Maths channel provided a Maths card is fitted ...

Страница 42: ...nctions Display is shown in Fig 3 30 This is only available if a Maths card is fitted Fig 3 30 Maths Functions Display Tmin and Tmax set the bar range except when the Maths function is Difference in which case the Tspan sets the scale of the bar Fig 3 31 Typical Maths Functions display Maximum ...

Страница 43: ...ss Code will be displayed Refer to Fig 3 32 Fig 3 32 Typical Access Code display 2 Use the on screen keypad to enter the Access Code The default code is 417 3 Press the key From the Main Configuration Menu select the Change Access Code option 4 Enter the new Access Code 5 Press the key The Access Code is now changed ...

Страница 44: ...TIME FUNCTION PROCESSING 4 ...

Страница 45: ...display the raw output from the Thermometer 4 2 Averager Refer to Fig 4 2 The Averager time function can be used to smooth the temperature output signal in relation to the temperature input The Averager response can be adjusted to suit your application With a fast response speed the temperature output signal tracks the input signal closely any rapid fluctuations in the input are reflected in the o...

Страница 46: ... mode Adjustable decay rate ON Delay Threshold level Temp Fig 4 3 Graphical representation of the Peak Picker time function Processor output Thermometer signal Temp Time On delay Bottom temp limit Sample time adjustable Fig 4 4 Typical output of Peak Sampler time function ...

Страница 47: ...d the Peak Picker function switching on OFF delay Time period between the temperature falling below the threshold level and the Peak Picker function switching off In Hold mode at the end of the OFF delay the temperature output value is held constant until the temperature input next rises above the threshold level In Reset mode at the end of the OFF delay the temperature output signal falls to unde...

Страница 48: ...peak picker It allows the operator to find the minimum peak value instead of the largest peak value Threshold level Temperature below which the Valley Picker is active used in conjunction with on off delays ON OFF delay See Peak Picker Recovery rate A user adjustable rate at which the stored temperature recovers Temp Max Threshold Temp Time 0V V Output Command ...

Страница 49: ...e function is useful especially for measuring intermittent processes e g items on a conveyor belt The presence of a hot object can be used to activate the Track function which causes the output to display the temperature of the object When the object moves from the measurement area the Track function can be switched off and the temperature value held until the next hot object appears The Track and...

Страница 50: ...SERIAL COMMUNICATIONS 5 ...

Страница 51: ...ers are setable See Fig 5 1 Access to the Serial settings screen is via the main menu See Fig 3 3 Unit address 0 to 15 Baud rate 300 600 1200 2400 4800 9600 57600 and 115200 Data bits 8 or 7 bits Parity None Odd or even Stop bits 1 or 2 Table 5 1 Serial Communications specification Fig 5 1 Serial Port Settings screen The available commands are given in Section 5 1 The detailed format of the comman...

Страница 52: ...ASCII characters Max This is the maximum parameter value that the LMG MkII will accept in ASCII characters Increment This is the valid increment of each parameter value recognised by the LMG MkII Default This is the default value of each parameter before adjustments are made Units This gives where appropriate the units which will be used by the LMG MkII for that parameter Note No floating point nu...

Страница 53: ...ction 0 7 1 0 0 None 1 Averager 2 Peak picker 3 Track Hold 4 Valley Picker 5 to 7 not used PPM Peak picker mode 0 2 1 0 0 Reset 1 Hold 2 Peak Valley Sample PPT Peak picker threshold irt_tmin irt_ tmax 1 irt_tmin value in degrees e g 1051C Limits and units determined by irt_type value PON Peak picker ON delay 0 100 1 0 e g 69 6 9s Seconds POF Peak picker OFF delay 0 100 1 100 e g 32 3 2s Seconds PP...

Страница 54: ...rt_min irt_ max 1 irt_min Value in degrees OPT Signal output type 0 1 1 1 0 0 to 20mA 1 4 to 20mA OMX Signal output Tmax 20mA irt_tmin 100 irt_ tmax 5 irt_tmax value in degrees Additional limit on value ensures t_max t_min 100 OMN Signal output Tmin mA irt_tmin irt_ tmin 100 5 irt_tmin value in degrees A1S Alarm 1 status Read only 0 not set 1 set A1S Alarm 2 status Read only 0 not set 1 set OBS Ob...

Страница 55: ...Add together ChA 128 ChB 64 ChC 32 ChD 16 MH1 Maths Function 1 Tmax 1 Dependent upon thermometer ML1 Maths Function 1 Tmin 1 Dependent upon thermometer MA1 Maths Function 1 Alarm 1 Level 1 Dependent upon thermometer MM1 Maths Function 1 Alarm 1 Mode 0 1 1 0 MO1 Maths Function 1 Output Mode 0 1 1 1 mA 0 0 to 20mA 1 4 to 20mA ST1 Maths Function 1 Temperature System output value Read only SS1 Maths F...

Страница 56: ...pon thermometer MM2 Maths Function 2 Alarm 1 Mode 0 1 1 0 MO2 Maths Function 2 Output Mode 0 1 1 1 mA 0 0 to 20mA 1 4 to 20mA ST2 Maths Function 2 Temperature System output value Read only SS2 Maths Function 2 Status 0 255 Bits in the Status byte 0 Not set 1 Set 2 Alarm A2 3 Error 4 Over range 5 Under range 6 Units 7 Alarm A1 SE1 F1 emiss value for BG comp 300 1000 1 1000 300 0 300 1000 1 000 OS1 ...

Страница 57: ...ceived at any time the entry is invalid and is not implemented x x x ETX 0x03 x New parameter value ASCII Space 5 2 RS485 Serial communication data format 5 2 1 RS485 read data mode Computer Terminal STX 0x02 Address 0x R x x x Landmark Graphic x x x UNITS Parameter value being modified ASCII x New parameter value ASCII Channel letter ASCII If the character is received at any time the entry is inv...

Страница 58: ...f text framing character reply STX addr A1000C ETX breakdown STX Binary 0x02 start of text framing character addr Binary address of replying processor A Channel ident of replying processor 1000C Temperature and units ETX Binary 0x03 end of text framing character To set the emissivity of channel B to 0 5 Type at the terminal STX addr SBEMS 50 ETX breakdown STX Binary 0x02 start of text framing char...

Страница 59: ...ocessor Ch C Label header XYZ Channel C label ETX Binary 0x03 end of text framing character Requesting parameters Type at the terminal STX addr R ST1 ETX breakdown STX Binary 0x02 start of text framing character addr Binary address of the processor to be interrogated e g 0x01 Unit Nº 1 R in ASCII in ASCII S in ASCII T in ASCII 1 in ASCII ETX Binary 0x03 end of text framing character reply STX addr...

Страница 60: ...rocessing required by a particular command 2 the time taken by processor housekeeping All commands are serviced within 30ms 5 3 3 Command reply time This is the time taken by the serial cards reply It is directly related to the selected baud rate and the number of characters in the reply 5 3 4 Inter command timing This is the time between the end of the last character of a command received by the ...

Страница 61: ... Generally a lower baud rate will give reliable communications over a longer length of a given cable type RS485 9600 baud 1000m when using the cable recommended below with correct cable terminations Recommended 1000m cable for RS485 2 pairs individually screened 50 ohms characteristic impedance 55 ohm km 100pf m core to core 200pf m core to screen ...

Страница 62: ...Signal Processor LMG MkII Blank ...

Страница 63: ...EXTERNAL I O MATHS FUNCTIONS 6 ...

Страница 64: ...Signal Processor LMG MkII Screws A Fig 6 1 Location of screws on back panel Screws A ...

Страница 65: ...nect the processor from the power supply before removing the rear panel Observe precautions for handling electrostatic discharge sensitive devices 1 Refer to Fig 6 1 Unscrew the six screws A Retain the screws in a safe place for re assembly 2 Remove the rear panel to reveal the I O cards in the processor 3 Remove the card from the conductive packaging 4 Insert the card into the slot nearest to the...

Страница 66: ...put return Maximum loop resistance 500 Ω Load Minimum load resistance 500 Ω AN OUT 1 2 3 4 5 6 Screen Screen Fig 6 2 External I O Analog Output Connections 6 2 2 External I O Maths Alarm Relay Connection Schedule The Alarm Output connection schedule is given in Fig 6 3 The alarm relay contact rating is 50V ac or dc at 0 5A The alarm relays will be in their Alarm state when power is removed RELAYS ...

Страница 67: ...gital Input Connection Schedule The External I O Digital Input connection schedule is given in Fig 6 5 The signal is inactive when the voltage is 3 0V or open circuit The signal is active when the voltage is 1 5V or short circuit Pin Nº Function Screen Din Din Description Digital input negative Digital input positive Screen 1 2 3 DIG IN Fig 6 5 External I O Digital Input Connections The input can ...

Страница 68: ...User Guide 6 4 Signal Processor LMG MkII Fig 6 7 Typical Access Code display Fig 6 8 Typical Main Configuration Menu display Fig 6 9 Typical Maths Configuration Menu display ...

Страница 69: ... two 0 to 20mA or a 4 to 20mA outputs and alarm relays Any fitted thermometer input channel or the analog input channel of the Maths card itself can be specified to be used in either or both Maths Function calculation Mapping of the I O to the Maths function is done via the Maths I O button The available Maths functions are Maximum See Section 6 4 1 Minimum See Section 6 4 2 Average See Section 6 ...

Страница 70: ...If any calculation is indeterminate this will be displayed clearly on the appropriate maths function display by the symbols in the numerical part of the display 6 3 2 Maths Function Display Settings You can specify upper and lower limits for the display of each function For example if your application has a typical maximum temperature of 1000 C you can choose that the lowest maximum value to be di...

Страница 71: ...tput from the function then press 6 Select Alarms then use the on screen controls to set levels for Alarms 1 and 2 You can set each alarm to be either a high or low alarm For example you can set Alarm 1 to be activated if the maximum temperature falls below 820 C low alarm and Alarm 2 to be activated if the maximum temperature goes above 1180 C high alarm To map the alarms to a physical relay outp...

Страница 72: ...User Guide 6 8 Signal Processor LMG MkII Fig 6 11 Typical Minimum Maths Function Display Fig 6 12 Typical Average Maths Function Display ...

Страница 73: ... Maximum See section 6 4 1 except that at Step 3 select Minimum 6 4 3 Average This function calculates and displays the Average value of all the allocated channels This is achieved simply by adding all the temperatures together then dividing by the number of allocated channels This function is set up in a similar way to Maximum See section 6 4 1 except that at Step 3 select Average ...

Страница 74: ...User Guide 6 10 Signal Processor LMG MkII Fig 6 13 Typical Range Maths Function Display Fig 6 14 Typical Difference Maths Function Display ...

Страница 75: ...the touchscreen keypad to enter a name for the maths function e g Difference 3 Use and buttons to scroll through the maths function options and select Difference 4 Select Inputs The list of available inputs is displayed then select Enable for the two inputs that you want to use for the maths function If you select more than two the function will use the first two inputs selected Press 5 Select Ala...

Страница 76: ...User Guide 6 12 Signal Processor LMG MkII Fig 6 15 Typical Background Compensation Maths Configuration Menu showing System Emissivity setting ...

Страница 77: ...unction e g Background 3 Use and buttons to scroll through the maths function options and select Background Compensation 4 Select Inputs The list of available inputs is displayed then select Enable for the two inputs that you want to use for the maths function If you select more than two the function will use the first two inputs selected Press 5 Select Alarms then use the on screen controls to se...

Страница 78: ...6 Typical Maths Function Alarm Levels Configuration Screen Each Maths function has two alarms that can be configured Each alarm can either be a High or Low alarm A high alarm will activate if the output from the Maths function is above the selected level A low alarm will activate if the temperature is under the selected level ...

Страница 79: ...on 1 is mapped to the output relay Function 1 Alarm 2 Alarm 2 from Maths function 1 is mapped to the output relay Function 1 All Both alarms from maths function 1 are mapped to the output relay If either is active the alarm will be active Function 2 Alarm 1 Alarm 1 from Maths function 2 is mapped to the output relay Function 2 Alarm 2 Alarm 2 from Maths function 2 is mapped to the output relay Fun...

Страница 80: ...rrent Loop Output Screen Each Maths output has its own analogue output on the Maths I O card Maths functions 1 is output on analogue output 1 on the I O card For each output the range is configurable in the Maths I O menu Choose either a 4 to 20mA or a 0 to 20mA range and the temperatures to scale the output ...

Страница 81: ...reen The analogue input on the Maths I O card can be used as an input to any of the Maths functions The configuration screen allows the user to adjust the temperature range the input represents It can be configured to work in either 0 to 20mA or 4 to 20mA mode The units can be selected to allow the input to represent temperatures in both C and F ...

Страница 82: ...User Guide 6 18 Signal Processor LMG MkII Channel B Channel A Thermometer A Thermometer B Product movement Fig 6 20 Application example System self checker ...

Страница 83: ...set up parameters are sighted onto precisely the same target spot Refer to Fig 6 20 The thermometers are connected to the Landmark Graphic MkII processor on Channels A and B respectively The Maths function is set up as Difference A B and the level is set to a low value e g 5 C determined during installation and commissioning of the system As the thermometers are monitoring exactly the same target ...

Страница 84: ...el A Thermometer B Slow response speed A B A B A B Difference A B is positive denoting arrival of hot object in field of view Product movement Time Time Hot object arrives Hot object leaves Thermometer A Fast response speed Difference A B is negative denoting hot object leaving field of view Temp Temp A B ...

Страница 85: ...ystem Upon the arrival of a hot moving object in the field of view Output of Channel A rises much quicker than that of Channel B The Difference function alarm is activated and the fact that Difference A B is a positive value indicates that a hot object has arrived in the field of view This alarm signal output could be used to activate a process further along the production line e g switching on co...

Страница 86: ... thermocouple is to be accepted into an LMG MkII then the LMG MkII must have an I O card fitted which is allocated to accepting the thermocouple transmitter input the thermocouple s characteristic non linear output must be linearised and converted to a 4 to 20mA signal equivalent to one of the LMG MkII pre determined linear input ranges before being transmitted to the LMG MkII i e 0 to 600 C 30 to...

Страница 87: ...uide LMG MkII Signal Processor Secondary Input Background Temp LMG Processor 3 9µm Thermometer True Load Temp 3 9µm Thermometer Primary Input Apparent Load Temp Fig 6 23 Schematic showing 2x thermometer in system ...

Страница 88: ...MAINTENANCE 7 ...

Страница 89: ...res Description Part Number LMG MkII Processor Cover 812087 LMG MkII Display Module Spares Kit 812520 LMG MkII Connection PCB Spares Kit 812521 LMG MkII System 4 I O Upgrade Spares Kit 812522 LMG MkII Ext I O PCB Upgrade Spares Kit 812523 7 way Plug 212 211 7 way Cable Housing 212 216 5 way Plug 212 214 5 way Cable Housing 212 218 6 way Plug 212 215 6 way Cable Housing 812645 2 way Plug 212 213 2 ...

Страница 90: ...r rating 1A Max Device Support USB Storage 128GB FAT32 7 2 1 Software Update To update the Landmark Graphic MkII software via the USB port 1 Obtain the latest update lmg file from AMETEK Land 2 Copy the update lmg file onto a USB storage device The file must be placed in the top level folder on the drive 3 Insert the USB storage device into the Landmark Graphic MkII 4 Use the access code to enter ...

Страница 91: ...are Update option Fig 7 2 USB Software Update option 7 If the update file is valid then the sub menu area should display a Software Update button Click this to begin the update 8 If the update file is not found or invalid the button will display the message update lmg not found ...

Страница 92: ...User Guide 7 4 Signal Processor LMG MkII Fig 7 3 USB Export Data option ...

Страница 93: ...Export Data See Fig 7 3 5 Set the Length adjuster to select how much historic data s to be exported e g 5m exports the last 5 minutes of recorded data 8h exports the last 8 hours of recorded data 6 The Available line shows how long the internal log currently is If the unit has been recently rebooted this will show the time since the unit started Once the log is full this will show 24 hours 7 Adjus...

Страница 94: ...UPGRADING FROM LMG MkI TO LMG MkII 8 ...

Страница 95: ...olour display Keypad Touch screen Menu Same menu structure Language Menu selectable Time Functions Same time function processing Maths functions Same Max Min Mean Difference Range Background Other maths function removed Code upgrade Via front panel USB Mechanical Panel Same panel cut out mounting arrangement Approximately 2 3 the depth IP rating Same IP65 protection cover Electrical Power Supply 2...

Страница 96: ... 1DJ England Tel 44 0 1246 417691 Email land enquiry ametek com www ametek land com AMETEK Land Americas 150 Freeport Road Pittsburgh PA 15238 U S A Tel 1 412 826 4444 Email land enquiry ametek com www ametek land com AMETEK Land China Service Part A 1st Floor No 460 North Fute Road Waigaoqiao Free Trade Zone 200131 Shanghai China Tel 86 21 5868 5111 ext 122 Email land enquiry ametek com www amete...

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